Yes....its explained in simple detail in The Bowhunters of TradGang DVD....with a little pinch on the nock with your fingers, it will stay....
I've actually taken several animals with reverse cant...a pheasant on the wing, a trotting hog, a stationary hog, and a couple of bunnys come to mind.
Macca....yeah...just order a $10 one and I'll mail ya one out.